Attachment for bronzing machines



NOV. 25, 1930. E, RADLOFF ET AL A 1,782,881

ATTACHMENT FOR BRONZING MACHINES Filed Aug. 25, 1928 v 3 Sheets-Sheet l AJlZL/azzk I Nov. 25, 1930. E., E. RADLOFF ET AL ATTACHMENT FOR BRONZING MACHINES Filed Aug. 25, 1928 :s Sheets-sheaf 2 NOV. 25, 1930. RADLQFF ET AL 1,782,881

ATTACHMENT FOR BRONZING MACHINES Filed Aug. 25, 1928 I 3 Sheets-Sheet 5 MI "W I I i/ 2 59mm l- EEHEQ7JA7JQP v25 fi 23 7 Patented Nov. 25, 1930 i for bronzing machines. i

In bronzing machines, it is the usual prac- UNITED ii STATES To 0. B. HENSCHEL MFG. 00., or M LWAUKEE, WISCONSIN r ATTACHMENTFOR Became MACH-rm Application filed August 25,1928, 'seriarnaaoans.

This invention relates to an attachment ties to carry the sheets upon a rubber blanket or belt and to operate upon the sheets while they are supported by the belt. It has been found that the sheets tGDCltO stick tothe belt and are not freely dischaged therefrom, so

. that they may bereceived by the sheet receiv- 10 i electricity generated by operating upon the ing means. 'It "is thought that the static sheets causes them to adhere to the belt. Various means have-been tried, such as stripping fingers, to remove the bronze sheets from the belt, butit has been found-that these fingersmarthe sheets and injure their-appearance. i r v This inventionis designed to provide a very slmple and serviceable means for removingor loosening the sheets from the belt without producing any marrlngwhatsoever upon the sheets, thus leaving the sheetsin air pump,such view showing the device with their initial integrity and permitting. their ready reception by the sheetreceiving means. More specifically, objects ofthis invention are to provide a sheet removing means which is Operated through the agency of 13, forms an-effec'tive means for supplying the l pulsating air; blast. This pump is directly thus free the oncoming sheets from the belt,

of blasts of air directed towards the belt to so that they may be readily received by the sheet receiving means without touching the Figure -1 is aside elevation with parts broken away showing diagrammatically a bronzing machine; I

Figure 2 is an end vlew ofthe sheet rece1ving means and the adjacent portion of the belt, the air pipe being shown in section;

Figure 3 is a view of the belt and air pipe. correspondingto a plan view of the structure 7 shown in'Figure 1 with, however,the upper rollers removed;

Figure 4 1s a view of'a modified form of the end cap removed:

Figure 5 is a sectional view on the line 5-5 of Figure 4.

Referring to the it willbe seen 7 that thebronzing machine isprovided with a 1continuousrubberbeltl which is usually itermedma blanket; This ibelt; receives the sheets and passes them through the casing '2- 'PATENTDFHCE 4 ERWIN E. RADLOFF AND AUGUST w. JANKEIOF MI WAuxnE, Wisconsin; nssIGNoBjs lines in Figure 1, and at the discharge. end

of the belt, a plush roller :6 is positioned immediatelyqabeve the roll-er l. The sheet receiving iinean's comprisesl an upper and a The pipeis provided with a multitude of It has been found that a reciprocating air pump, such as indicated at 11 in Figures 1 and connected to the fpipe .9 without any interme diate. storage tank. The intake may be :provided with afiltering inozzle or head 12 or anysuitable construction. The pump has its :piston rod 13 connected in any suitable mannor to -afsource of :power, such for example,

asbymeans ofthecrank14tandlink-15. i The crank is driven by means *of "the. pulley 16 which maybe belted -to any portion of the machine desired. Obviously, other forms of drivingthe re'ci-procatory pump "could be em .5

ployed without departing from thespirit of thisinventi'on U j It has been found that a pneumatic lodging means, such as disclosed intliis "iirveat' i ng ope'rates perfectly and dislodges the sheets in a certain 'andreliable manner with out producing any defacement of the sheets whatsoever.

ilowlerH-plush roller,- indicated by "the reference characters7and8. 5 i a immediately adj acenttfhe discharge-end of I the belt,atransverse air pipe 9 is positioned.

flhis ai ri'pipe, it will be sfeenfroin Fi-gure 2,

i is in fnont of the-sheetreceivingrol lersi 6 and 7, and closely adjacent the belt.

It is to be noted also that the construction V plied to existing machines without requiring any alteration of the machine.

It is to be noted further that the dislodging means does not interfere with any other portion of the machine.

Referring to Figures i and 5, the modified form of air pipe or blower consists of a cas ing 17 within which an eccentric rotor 18 is mounted. This rotor carries vanes 19 which,

in the form shown, are three in number. The

vanes are adapted to contact with the inner surface of the cylindrical casing 17 when the rotor is operated, due to centrifugal action. Thus, all springs or other members of this type are wholly avoided, and a very simple sealing action takes place.

The rotor is provided with a projecting shaft 20 which carries a driven pulley 21. The other end of the rotor is provided with a short shaft 22 which is received within the bearing portion or end cap 28. The end cap is provided with inlet and outlet openings 24 and 25 which communicate with annular grooved out portions 26 and 27.

The device is so made, and it has been found from actual tests, that a rapid series of blasts of air are produced. The effect is the same as if a reciprocating pump operated at a high speed had been used, and consequently the results enumerated above are also obtained by this device.

The device, it will be noted, is substantially balanced and will not produce vibration or rattling.

Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting as the invention maybe variously embodied and as the scope of such invention is to be determined as claimed.

e claim:

In combination with a plurality of rollers arranged in intimate contact and in opposed pairs with the pairs extending both vertically and horizontally, of a feeding belt passing around one of said rollers and in intimate contact with a vertically opposed roller for receiving sheets thereon, and an air pipe extending longitudinally of the roller around which the belt passes and having a plurality of apertures directed in an upwardly inclined plane toward said belt, and means for directing a pulsating blast of air through said apertures to free the sheets from said belt.

In testimony that we claim the foregoing we have hereunto set our hands at Milwaukee, in the county of Milwaukee and State of Wisconsin.

ERVVIN E. RADLOFF. AUGUST W. JANKE. 

